Transposition Flap
A local flap that moves tissue laterally across normal skin to close a defect.
Full Definition
A transposition flap is a type of local flap used in reconstructive surgery where tissue is moved laterally across an area of normal skin (a bridge) to close a surgical defect. Unlike advancement flaps, transposition flaps involve moving tissue perpendicular to the defect's long axis. Common examples include Z-plasty, rhombic flaps, and bilobed flaps. These flaps are particularly useful when direct closure would result in excessive tension or distortion of anatomic structures, and they can help redistribute tension vectors for optimal healing and cosmetic outcomes.
Usage
Usage note: Specify the type of transposition flap used (e.g., rhombic, bilobed) in operative documentation.
In Context
- "A bilobed transposition flap was used to reconstruct the nasal defect." — Operative report
- "The transposition flap provided excellent tissue match and minimal tension at closure." — Follow-up note